Separator



JESSUP SEPARATOR.

( 0 Model.)

No. 576,195. Patented Feb. 2,1897.

NITED STATES PATENT OFFICE.

ROBERT W. JESSUP, OF LOS ANGELES, CALIFORNIA, ASSIGNOR OF ONE- I-IALF TO FAIRFAX H. VVHEELAN, OF SAN FRANCISCO, CALIFORNIA.

S EPARATO R.

SPECIFICATION forming part of Letters Patent No. 576,195, dated February 2, 1897. Application filed March 23, 1896- Serial No. 584,369. (No model.)

T0 at whom it may concern:

Be it known that 1, ROBERT W. J tissue, a citizen of the United States, residing at Los Angeles, county of Los Angeles, State of California, have invented an Improvement in Separators, and I hereby declare the following to be a full, clear, and exact description of the same.

My invention relates to that class of separators employing screens, arrangedin series, in a passage provided with directing and stop plates, whereby the material is delivered to the successive screens and the separated particles kept apart.

My invention is particularly adapted for and is applied to what may be termed grain separation, by which I mean the separation from wheat of oats, chess, sweet clover, and mustard; from barley, of oats, small kernels of barley, mustard, chess, or seeds, and from oats, of the smaller oats, mustard, &c., though it is also adapted for the separation of all the smaller seeds.

The object of my invention is to provide a separator which, by reason of the peculiar construction of the screens, as well as by their relative arrangement in the device,shall,while effecting a more perfect separation, insure a self-clearing action, and, by doing away with all tendency to clog, keep the screens in porfeet working order.

To this end my invention consists in the novel construction of the screens, and also in their arrangement in the device, which I shall now describe by reference to the accompanying drawings, in which- Figure 1 is a vertical section of my separator. Fig. 2 is a perspective view of one of the screens B.

A is a casing in which are located, at an incline, successive screens 13, front directingplates C, and back stop-plates D. In the upper portion of the casing is a feed plate or hopper E. The material from the front of the screens discharges through the bottom of the casing, while the material from the back discharges at an aperture a at the lower portion of the back of the casing.

Each screen 13 consists of a number of parallel spaced needles 5, secured fixedly in a common head and thence extending free and independently to the other end, having no connection at said other end whatever. It is essential for the purposes of my grain and small-seed separation that these needles shall be of a diameter small enough and a length sufficient, and of proper material, to render them pliant, yielding, or springy under the impact and weight of the material discharged upon and flowing over them, so that they shall vibrate while in action, which vibration, in addition to their general pliancy, produces an agitation of the material, resulting in a more perfect separation, as well as keeping the screens themselves clear. and free, by inducing the passage of the smaller particles through between the needles and clearing out any particles inclined to clog and obstruct, because the needles, being pliant, separate at their lower ends sufficiently to permit said particles to beforced out. In practice I find that the ordinary steel knitting-needles are best suited for my screens. The needles are best secured in a groove (1, formed in the back or stop plates D.

The screens are inserted in the casing by slipping their head-plates D in inclined slots or grooves (0'. Likewise the front plates C are secured in side slits a in the casing, said plates being formed with front extensions 0, which serve as front guard-plates to the material-passage, in addition to the main cover a, which latter, by being removable, affords access to the several parts and permits the taking out of the platesD to get at the screens, when necessary.

I have found in practice that the directingplates C should be arranged in such position as to deliver the material not too near the head of the screens, so that the best effect of the vibration and yielding of the needles may be had.

Having thus described m y invention, what- I claim as new, and desire to secure by Letters Patent, is-

1. In a separator for grain and small seeds, the combination of a screen composed of parallel spaced needles having a fixed connection at one end and thence extending separate and independent to the other end, and free at said end, said needles being pliant and springy and adapted to Vibrate under the contact of the material and its passage over them, an inclined directing-plate in front of screen, to deliver the material to it, and an inclined stop-plate behind the screen to keep apart the separated materials.

2. Ina separator for grain and small seeds, the combination of a series of screens, each screen being composed of parallel spaced needles, of a pliant and springy character, plates to which said needles are fixed at one end, and thence extend separate and independent to the other end, and free at said end, whereby they are adapted to vibrate under the contact and flow of the material, said plates traversing the spaces between the ad- 15 jacent ends of the screens and forming stops to keep the separated particles apart, and inclined directing-plates in front of the screens to direct the material to them.

In Witness whereof I have hereunto set my 20 hand.

ROBERT W. JESSUP.

Vitnesses II. J. LANG, Gno. T. KNOX. 

